is the mathematics of collection, organization, and interpretation of numerical data, especially the analysis of population characteristics by inference from sampling

To compute for the confidence interval for the estimate of the mean of a normal population with a known population variance, the — distribution estimate is used

A subset of the population selected for study, which represents the whole population.

It is a single numerical value used to approximate an UNKNOWN POPULATION PARAMETER.

. A method of collecting data by asking questions to a sample of individuals to infer information about the population,

For correlational studies, a sample of at least -is deemed necessary to establish the existence of a relationship.

Samples should be as large as a - can obtain with a reasonable expenditure of —

The process of using sample data to calculate and approximate population parameters.

The entire group of individuals, objects, or events that a researcher is interested in studying.

. It corresponds to probabilities (areas) associated with the normal curve.

To compute for the confidence interval for the estimate of the mean of a population whose distribution is not normal, but the sample size is sufficiently large, the - distribution estimate is used.

numerical value that describes a characteristic of a sample and is used to estimate a population parameter

A DATA COLLECTION METHOD that gathers INFORMATION from EVERY MEMBER of the population.

It is the probability that a wrong decision had been made or the risk that a hypothesis had been rejected when it's true

The interval of values that predicts the population parameter

These are z-scores that represent the boundaries of the confidence interval

For descriptive studies, a sample with a minimum number of i-s essential

For experimental and causal-comparative studies, a minimum of - individuals per group.

The statistics that aim to make inferences or predictions.

The statistics that aim to describe the characteristics of data.